say it: TOO-nik
tunic is a noun meaning "an enveloping or covering membrane or layer of body tissue". It carries 2 recorded senses.
an enveloping or covering membrane or layer of body tissue
any of a variety of loose fitting cloaks extending to the hips or knees
Forms marked · are formed by the regular rule rather than recorded in the source data. English keeps a few hundred irregulars and the rest follow the pattern, so the rule is right far more often than not — but it is a rule, and the mark says so.
Definitions, synonyms and semantic relations for tunic come from Princeton University’s WordNet. The pronunciation comes from the CMU Pronouncing Dictionary. Commonness is measured against a corpus of everyday English. Full sources and licences.